Bag of Jelly Beans (or gumballs)

clear plastic bag (dry cleaning bags are great)
balloons, several different colors
bright colored scarf
white posterboard
black marker
craft glue

Have child step into bag to make holes for the legs and arms. Fill bag with balloons use a bright scarf to tie around the top of the bag. Cut a square of posterboard to create a sign that says "Jelly Beans 5¢". Glue it to the front of the bag.

M&M

black sweatsuit
2 pieces of cardboard
craft or spray paint, any color of M&M's
black craft paint or markers
heavy duty string

Cut two large circles out of cardboard. Paint. Draw or paint on "m&m" onto both circles. Use heavy duty string to attach the 2 pieces together and hang over shoulders, sign style. 

Table for One

cardboard
red checkerboard table cloth
play dishes
play food
silk flowers
plastic headband

Cut cardboard into a circle, cut out a hold for your head. Put head into hole and rest on your shoulders. Cover with a red checkerboard tablecloth. Make your head into a centerpiece by gluing silk flowers to the headband. Glue play dishes and play food onto the table, add accessories (salt and pepper shakers, napkins, menu, etc.).

Mr. Potato Head

black sweatsuit
burlap bag
old shirt or rags
white felt
black felt
red felt
peach felt
brown felt
Velcro fasteners
fiber fill
red clown shoes
white gloves

Fill the burlap bag with old shirts or rags. Using felt, cut out the eyes (black and white), nose (peach), mouth (red), and mustache (brown). Attach Velcro to the backs of the pieces of felt. Use fiberfill to stuff each parts. Attach the Velcro backs to the suit.

King & Queen of Hearts

4 pieces of white posterboard
2 pieces of cardboard (from nylon package)
gold spray paint
red lipstick

Draw the King of Hearts face on one side of the white posterboard, then just hearts on back side. Put a strap (scrap of material) stapling the two posters to fit over child's head on to their shoulder. Make gold crown out of nylon cardboard. Put a heart of lipstick on child's cheek. Repeat for the Queen.

Grapes

purple or green sweatsuit
purple or green balloons
double-sided tape or adhesive Velcro circles
chenille sticks or raffia

Stick balloons to clothing. If using tape, twist it around tied-off end of balloon and crimp tightly onto clothing. Velcro circles come apart. Each half can be attached to a balloon and the clothing. Make a "stem" by twisting together brown and green pipe cleaners or raffia and attach to hat. This works best as an indoor party outfit and should not be worn by children under five -- balloons are a choking hazard.

Grape Vine

brown sweatsuit
brown shoes
double sided tape
purple balloons

Cover your body with double sided sticky tape. Then fill up purple balloons and attach the balloons to the double sided tape. You may use a garbage bag tie to attach the balloon to the double sided tape. This is preferred if you are going outside in the wind.

A Highway

black sweatsuit
yellow craft paint or yellow tape
small plastic toy cars

Paint two solid yellow lines down the middle of the shirt, or use 2 inch pieces of yellow tape. Glue on plastic cars.

Laundry Basket

hooded sweatsuit, any color
small round laundry basket
string
odd socks
armful of clothing
empty detergent bottle
empty fabric softener bottle

Cut a hole in the bottom of the laundry basket to fit to child's body. Attach twin strings to act as suspenders to hold the basket up. Fill it with clothes and empty detergent bottles.

Static Cling

Mismatched clothes
safety pins
dryer sheets
socks
small towels
hair gel

Wear any kind of mismatched clothes, pin one pant leg up, pin dryer sheets on you as well as socks, small towels, etc. Use hair gel to make your hair look like it has static.

Punk Rocker

black pants
leather jacket
colored hair spray
sunglasses
hair gel
hair spray

Use hair gel and hair spray to tease hair into crazy spikes. Color.

Priest

black pants
black button-down shirt
black shoes
white posterboard
rosary
bible

Create a priest's collar from white poster board and insert into front collar area of shirt. Works best if you use a shirt that has the same type of self-faced collar as priests wear, or you could tuck under the collar points for a similar effect. Add rosary and bible. Especially a cute costume for a boy who is constantly in trouble!

Crayon

any color sweatsuit
matching color construction paper or posterboard
black marker

Paint the word "crayon" sideways in black, and use the same color construction paper to make your pointed hat. Staple a string on it and tie it under your neck to keep it secure, you can paint your face the same color too.